TMP401 Datasheet, PDF (1/24 Pages) Burr-Brown (TI) – 1C Programmable, Remote/Local, Digital Out TEMPERATURE SENSOR

TMP401
SBOS371 − AUGUST 2006
+15C Programmable, Remote/Local, Digital Out
TEMPERATURE SENSOR
FEATURES
D ±1°C REMOTE DIODE SENSOR
D ±3°C LOCAL TEMPERATURE SENSOR
D SERIES RESISTANCE CANCELLATION
D THERM FLAG OUTPUT
D ALERT/THERM2 FLAG OUTPUT
D PROGRAMMABLE OVER/UNDER
TEMPERATURE LIMITS
D PROGRAMMABLE RESOLUTION: 9- to 12-Bit
D DIODE FAULT DETECTION
D SMBus SERIAL INTERFACE
APPLICATIONS
D LCD/DLPE/LCOS PROJECTORS
D SERVERS
D INDUSTRIAL CONTROLLERS
D CENTRAL OFFICE TELECOM EQUIPMENT
D DESKTOP AND NOTEBOOK COMPUTERS
D STORAGE AREA NETWORKS
DESCRIPTION
The TMP401 is a remote temperature sensor monitor with
a built-in local temperature sensor. The remote
temperature sensor diode-connected transistors are
typically low-cost, NPN- or PNP-type transistors or diodes
that are an integral part of microcontrollers,
microprocessors, or FPGAs.
Remote accuracy is ±1°C for multiple IC manufacturers,
with no calibration needed. The Two-Wire serial interface
accepts SMBus write byte, read byte, send byte, and
receive byte commands to program alarm thresholds and
to read temperature data.
Features included in the TMP401 are series resistance
cancellation, wide remote temperature measurement
range (up to +150°C), diode fault detection, and
temperature alert functions.
V+
1
V+
5
GND
TMP401
D+ 2
3
D−
8
SCL
7
SDA
One− Shot
Start Register
Local
Temperature
Register
Conversion Rate
Register
Remote
Temperature
Register
Interrupt
Configuration
Consecutive Alert
Configuration Register
Status Register
Remote Temp High Limit
Remote THERM Limit
Remote Temp Low Limit
T_L
THERM Hysteresis Register
Local Temp High Limit
Temperature
Comparators
T_R
Local THERM Limit
Local Temp Low Limit
Manufacturer ID Register
Device ID Register
Configuration Register
Resolution Register
Bus Interface
Pointer Register
4
THERM
6
ALERT/THERM2
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
DLP is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright  2006, Texas Instruments Incorporated
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